From 5f5a901744544a6ef6544d1676f0c6970e3c86de Mon Sep 17 00:00:00 2001
From: Aaron Piotrowski <aaron@trowski.com>
Date: Mon, 15 Oct 2018 10:12:17 -0500
Subject: [PATCH] Add Process::__debugInfo()

Fixes #25.
---
 lib/Process.php      | 12 ++++++++++++
 test/ProcessTest.php | 23 +++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/lib/Process.php b/lib/Process.php
index 8081b09..3cb1a35 100644
--- a/lib/Process.php
+++ b/lib/Process.php
@@ -269,4 +269,16 @@ class Process
 
         return $this->handle->stderr;
     }
+
+    public function __debugInfo(): array
+    {
+        return [
+            'command' => $this->getCommand(),
+            'cwd' => $this->getWorkingDirectory(),
+            'env' => $this->getEnv(),
+            'options' => $this->getOptions(),
+            'pid' => $this->pid,
+            'status' => $this->handle ? $this->handle->status : -1,
+        ];
+    }
 }
diff --git a/test/ProcessTest.php b/test/ProcessTest.php
index 95a7f4a..58f06f0 100644
--- a/test/ProcessTest.php
+++ b/test/ProcessTest.php
@@ -5,6 +5,7 @@ namespace Amp\Process\Test;
 use Amp\ByteStream\Message;
 use Amp\Delayed;
 use Amp\Loop;
+use Amp\Process\Internal\ProcessStatus;
 use Amp\Process\Process;
 use Amp\Process\ProcessInputStream;
 use Amp\Process\ProcessOutputStream;
@@ -358,4 +359,26 @@ class ProcessTest extends TestCase
             $this->assertSame(0, yield $process->join());
         });
     }
+
+    public function testDebugInfo() {
+        Loop::run(function () {
+            $process = new Process(["php", __DIR__ . "/bin/worker.php"], __DIR__);
+
+            $this->assertSame([
+                'command' => "'php' '" . __DIR__ . "/bin/worker.php'",
+                'cwd' => __DIR__,
+                'env' => [],
+                'options' => [],
+                'pid' => null,
+                'status' => -1,
+            ], $process->__debugInfo());
+
+            yield $process->start();
+
+            $debug = $process->__debugInfo();
+
+            $this->assertInternalType('int', $debug['pid']);
+            $this->assertSame(ProcessStatus::RUNNING, $debug['status']);
+        });
+    }
 }